Radiation-sensitive composition, method for forming pattern and onium salt compound
US-2026063994-A1 · Mar 5, 2026 · US
containing doubly-bound oxygen atoms bound to the carbon skeleton
containing doubly-bound oxygen atoms bound to the carbon skeleton · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C07C309/44 |
| Official title | containing doubly-bound oxygen atoms bound to the carbon skeleton |
| Display label | containing doubly-bound oxygen atoms bound to the carbon skeleton |
| Total patents | 50 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 2 |
| 2017 | 10 |
| 2018 | 3 |
| 2019 | 4 |
| 2020 | 4 |
| 2021 | 2 |
| 2022 | 4 |
| 2023 | 3 |
| 2024 | 3 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process for preparing carbamoyloxymethyl triazole cyclohexyl acid compounds
US-12459904-B2 · Nov 4, 2025 · US
Perovskite layer, fabrication method and use the same
US-12408548-B2 · Sep 2, 2025 · US
Perovskite layer, fabrication method and use the same
US-2025143173-A1 · May 1, 2025 · US
Onium salt type monomer, polymer, chemically amplified resist composition, and pattern forming process
US-2025123566-A1 · Apr 17, 2025 · US
Polyphenylenes, methods, and uses thereof
US-12084554-B2 · Sep 10, 2024 · US
Polyphenylenes, methods, and uses thereof
US-11970590-B2 · Apr 30, 2024 · US
Polyphenylenes, methods, and uses thereof
US-2024117132-A1 · Apr 11, 2024 · US
Polyphenylenes, methods, and uses thereof
US-11802187-B2 · Oct 31, 2023 · US
Trex1 inhibitors and uses thereof
US-2023278957-A1 · Sep 7, 2023 · US
Polyphenylenes, methods, and uses thereof
US-2023159716-A1 · May 25, 2023 · US
Electrolyte including mixture of active material and precursor thereof
US-11489184-B2 · Nov 1, 2022 · US
Process for preparing carbamoyloxymethyl triazole cyclohexyl acid compounds
US-2022298122-A1 · Sep 22, 2022 · US
Electrolytic capacitor and manufacturing method of electrolytic capacitor
US-11417472-B2 · Aug 16, 2022 · US
Stable positive side material for all-organic flow battery
US-11245111-B2 · Feb 8, 2022 · US
Electrolyte including mixture of active material and precursor thereof
US-2021305610-A1 · Sep 30, 2021 · US
Resist composition and resist patterning process
US-11131926-B2 · Sep 28, 2021 · US
Electrolytic capacitor and manufacturing method of electrolytic capacitor
US-2020411251-A1 · Dec 31, 2020 · US
Polyphenylenes, methods, and uses thereof
US-2020362129-A1 · Nov 19, 2020 · US
Compound and polymer electrolyte membrane using same
US-10727516-B2 · Jul 28, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C309/44?
- CPC C07C309/44 is the Cooperative Patent Classification code for “containing doubly-bound oxygen atoms bound to the carbon skeleton.”
- How many patents are filed under CPC C07C309/44 (containing doubly-bound oxygen atoms bound to the carbon skeleton)?
- Our database includes 50 publications tagged with this CPC code.
- Is patent activity under CPC C07C309/44 growing?
- Publication counts under this code: 3 in 2024 vs 4 in 2025 (latest complete years).